First, you'll be asked about your medical history and any vision problems you might be experiencing.

Next, how clearly you can see (visual acuity) is measured. This helps determine your prescription for glasses.

Your eye pressure is measured, for which you may receive drops that enlarge your pupils.

Your eye doctor checks the health of your eyes, possibly using several lights to evaluate the front of the eye and inside of each eye.

Finally, your eye doctor discusses what he or she found during the exam and answers questions you have about your eyes.

Part of the examination, such as taking your medical history and the initial eye test, may be performed by a technician who assists your doctor.

Several different tests may be performed during the eye exam. The tests are designed to check your vision and to examine the appearance and function of all parts of your eyes.

Eye muscle test

This test examines the muscles that control eye movement, looking for weakness, poor control or poor coordination. Your eye doctor watches your eye movements as you follow a moving object, such as a pen or light, with your eyes.

An Iranian military observation aircraft flew within 50 yards of an armed U.S. Navy helicopter over the Persian Gulf this month, sparking concern that top Iranian commanders might not be in full control of local forces, CNN has learned.